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70 lines
1.5 KiB
70 lines
1.5 KiB
/* |
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* Copyright (c) 2017, NXP |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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#include <errno.h> |
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#include <soc.h> |
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#include <drivers/clock_control.h> |
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#include <dt-bindings/clock/kinetis_sim.h> |
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#include <fsl_clock.h> |
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#define LOG_LEVEL CONFIG_CLOCK_CONTROL_LOG_LEVEL |
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#include <logging/log.h> |
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LOG_MODULE_REGISTER(clock_control); |
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static int mcux_sim_on(struct device *dev, clock_control_subsys_t sub_system) |
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{ |
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return 0; |
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} |
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static int mcux_sim_off(struct device *dev, clock_control_subsys_t sub_system) |
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{ |
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return 0; |
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} |
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static int mcux_sim_get_subsys_rate(struct device *dev, |
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clock_control_subsys_t sub_system, |
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u32_t *rate) |
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{ |
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clock_name_t clock_name; |
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switch ((u32_t) sub_system) { |
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case KINETIS_SIM_LPO_CLK: |
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clock_name = kCLOCK_LpoClk; |
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break; |
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default: |
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clock_name = (clock_name_t) sub_system; |
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break; |
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} |
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*rate = CLOCK_GetFreq(clock_name); |
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return 0; |
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} |
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static int mcux_sim_init(struct device *dev) |
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{ |
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#ifdef DT_SIM_CLKOUT_DIVIDER |
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SIM->CHIPCTL = (SIM->CHIPCTL & ~SIM_CHIPCTL_CLKOUTDIV_MASK) |
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| SIM_CHIPCTL_CLKOUTDIV(DT_SIM_CLKOUT_DIVIDER); |
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#endif |
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#ifdef DT_SIM_CLKOUT_SOURCE |
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SIM->CHIPCTL = (SIM->CHIPCTL & ~SIM_CHIPCTL_CLKOUTSEL_MASK) |
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| SIM_CHIPCTL_CLKOUTSEL(DT_SIM_CLKOUT_SOURCE); |
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#endif |
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return 0; |
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} |
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static const struct clock_control_driver_api mcux_sim_driver_api = { |
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.on = mcux_sim_on, |
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.off = mcux_sim_off, |
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.get_rate = mcux_sim_get_subsys_rate, |
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}; |
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DEVICE_AND_API_INIT(mcux_sim, DT_SIM_NAME, |
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&mcux_sim_init, |
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NULL, NULL, |
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PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE, |
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&mcux_sim_driver_api);
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